this study investigated the effect of different harvesting techniques on the recovery rate and quality of bovine cumulus oocyte complexes (cocs) and their subsequent developmental competence including in vitro maturation, fertilization and blastocyst formation. the cocs were retrieved from slaughter ovaries using aspiration, slicing, or aspiration followed by slicing. the cocs were examined mic...

The management of poor responders in IVF cycles is extremely controversial due to their inadequate response to controlled ovarian hyperstimulation.. A low ovarian response may be idiopathic or may be associated with many different factors including age, diminished ovarian reserve, endometriosis and prior ovarian surgery, and a reported incidence 9-24% of IVF patients. Several strategies have be...

BACKGROUND Infertility due to accelerated loss of ovarian follicles/oocytes may occur through numerous mechanisms. As a result, posthumous human oocyte donation, banking and maturation protocols for research and fertility restoration are current interests in reproductive medicine. METHODS A computer-generated sample of Utah residents (n = 704) were surveyed regarding demographics, willingness...

Abstract The development of vitrification techniques has increased the use donor ova by allowing for their cryopreservation, storage, and international transportation. However, implications egg banking valuation eggs remain little studied. Building on ethnographic fieldwork in a Ukrainian bank, this article I examine different mechanisms calculations that allow bank to transform vitrified ova—p...

STUDY QUESTION How does vitrification affect oocyte viability? SUMMARY ANSWER Vitrification does not affect oocyte viability in oocyte donation cycles. WHAT IS KNOWN ALREADY Oocyte vitrification is performed routinely and successfully in IVF and oocyte donation programs. STUDY DESIGN, SIZE, DURATION This is a prospective study performed between June 2009 and February 2012 to compare ongoi...

Fertility is important to women and men with cancer. While options for fertility preservation (FP) are available, knowledge regarding the medical application of FP is lacking. Therefore we examined FP practices for cancer patients among reproductive endocrinologists (REs). A 36 item survey was sent to board-certified REs. 98% of respondents reported counseling women with cancer about FP options...

Children and women of reproductive age are increasingly surviving cancer diagnoses, and therefore long-term quality-of-life issues are of greater importance at the time of diagnosis. Cancer therapies including radiation and chemotherapy can be detrimental to fertility, and therefore many patients are motivated to preserve fertility prior to cancer treatment. The only highly successful method in...

BACKGROUND An efficient oocyte cryopreservation method is mandatory to establish a successful egg-banking programme. Although there are increasing reports showing good clinical outcomes after oocyte cryopreservation, there is still a lack of large controlled studies evaluating the effectiveness of oocyte cryo-banking. In this study, we aimed to compare the outcome of vitrified-banked oocytes wi...